update CHANGELOG.md

Author: RobsonSutton

CHANGELOG.md

@@ -2,6 +2,7 @@
 ### Fixed
 - Correctly identify a missing security user ([#101](https://github.com/elastic/terraform-provider-elasticstack/issues/101))
 - Support **7.x** Elasticsearch < **7.15** by removing the default `media_type` attribute in the Append processor ([#118](https://github.com/elastic/terraform-provider-elasticstack/pull/118))
+- Add `allow_restricted_indices` setting to security role ([#125](https://github.com/elastic/terraform-provider-elasticstack/issues/125))
 
 ## [0.3.3] - 2023-03-22
 ### Fixed